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Texas Instruments THS4215D
- Part No.:
- THS4215D
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4215D.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,946
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Product details
Overview
THS4215D from Texas Instruments is a high-speed, low-distortion, voltage-feedback operational amplifier with power-down functionality. It delivers 970 V/µs slew rate, 1 GHz small-signal bandwidth (±5 V), –90 dBc THD at 30 MHz, and ±5 V to ±7.5 V dual-supply operation - enabling precision signal conditioning in high-fidelity ADC preamplifier and video buffer applications.
For engineers reviewing the THS4215D datasheet, THS4215D pinout, THS4215D application, or THS4215D equivalent, key selection considerations include its power-down control interface, 8-pin SOIC package thermal performance, differential gain/phase accuracy for video systems, and harmonic distortion behavior under 2 VPP output swing at 30 MHz.
Technical Context
The THS4215D employs a unity-gain-stable voltage-feedback architecture optimized for wideband AC-coupled signal paths. Its internal compensation enables stable operation at G = 1 without external components while maintaining 130-MHz 0.1-dB flat bandwidth at G = 2.
Power-down is implemented via a dedicated PD pin referenced to VS– or VS+, with defined enable thresholds (REF+1.0 V min / REF–1.5 V max) and sub-5 µs turn-on/turn-off delays. Quiescent current drops to ≤900 µA in power-down mode under ±5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 1 GHz at G = 1, ±5 V - supports RF and IF signal chain stages up to UHF frequencies |
| Slew rate | 970 V/µs at G = 1 - preserves fast transient fidelity in pulse and video applications |
| THD @ 30 MHz | –90 dBc (RL = 499 Ω) - meets high-linearity requirements for 12-bit+ ADC driving |
| 0.1-dB flat bandwidth | 130 MHz at G = 2 - ensures minimal amplitude error across HD video baseband spectrum |
| Differential gain/phase | 0.007% / 0.003° - satisfies NTSC/PAL broadcast video timing and color fidelity specs |
| Power-down quiescent current | ≤900 µA at ±5 V - enables low-power standby in battery-backed or energy-conscious systems |
| Supply voltage range | ±2.5 V to ±7.5 V dual or 5 V to 15 V single - supports legacy ±5 V and modern 5 V/12 V rails |
Pinout & Package
THS4215D is housed in an 8-pin SOIC (D) package with exposed pad thermal enhancement. Pin 1 is NC (no connection); pins 2–5 and 7–8 are functional; pin 6 is VOUT. The PD pin (pin 1 on THS4215 variant) enables hardware-controlled shutdown.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection; must be left unconnected or tied to ground per layout guidelines |
| 2 | IN– | Inverting input; high-impedance node requiring matched trace routing for optimal CMRR |
| 3 | IN+ | Non-inverting input; referenced to common-mode voltage range of VS– +1.2 V to VS+ –1.2 V |
| 4 | VS– | Negative supply rail; requires local 0.1 µF + 4.7 µF decoupling adjacent to pin |
| 5 | PD | Power-down control; logic-high (≥REF+1.0 V) disables amplifier; logic-low (≤REF–1.5 V) enables |
| 6 | VOUT | Amplified output; capable of sourcing/sinking ≥170 mA into 10 Ω load |
| 7 | VS+ | Positive supply rail; same decoupling requirement as VS– |
| 8 | NC | No internal connection; must be left unconnected or tied to ground per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stability | Operates stably at G = 1 without external compensation - simplifies design of wideband buffers |
| Power-down interface | Dedicated PD pin with TTL/CMOS-compatible thresholds - enables system-level power sequencing |
| Video-grade linearity | 0.007% differential gain and 0.003° phase error - eliminates color shift in multi-load SD/HD video distribution |
| High output drive | 170 mA sink/source capability - drives 150 Ω video loads or multiple ADC inputs directly |
| Low input noise | 7 nV/√Hz at 1 MHz - preserves SNR in front-end amplification of weak analog signals |
Applications
| High-Linearity ADC Preamplifier | Differential-to-Single-Ended Conversion |
|---|---|
Use Scenario: Driving the input of a 14-bit, 100-MSPS pipeline ADC in a communications receiver front end. IC Role / Device Role / Timing Role: Single-ended voltage buffer with gain-of-2 configuration, providing low-noise, low-distortion signal conditioning before sampling. Use Value: –90 dBc THD at 30 MHz and 130-MHz 0.1-dB flatness ensure full dynamic range utilization without harmonic folding. | Use Scenario: Converting the differential output of a THS4503 fully differential amplifier to single-ended for legacy analog processing stages. IC Role / Device Role / Timing Role: Precision gain-stage amplifier with matched input impedance and high CMRR (>50 dB). Use Value: Input common-mode range of ±3.6 V at +85°C enables robust interfacing across temperature without level-shifting circuitry. |
| DAC Output Buffer | Active Filtering |
Use Scenario: Isolating and amplifying the output of a high-speed DAC in a waveform generation system operating up to 50 MHz. IC Role / Device Role / Timing Role: Low-output-impedance (0.3 Ω) buffer delivering 2 VPP into 150 Ω loads with <0.01% gain error. Use Value: 970 V/µs slew rate prevents slewing-induced distortion on fast-rising DAC steps, preserving waveform fidelity. | Use Scenario: Implementing a 4th-order Sallen-Key low-pass filter for anti-aliasing prior to digitization in test equipment. IC Role / Device Role / Timing Role: Active filter stage with precise gain control and minimal phase nonlinearity across passband. Use Value: 1 GHz unity-gain bandwidth ensures filter response remains accurate up to 10× cutoff frequency without peaking or roll-off deviation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4211D | No power-down pin; otherwise identical AC/DC specs and pinout except PD pin repurposed as NC | Not suitable where system-level power gating is required; preferred for always-on signal paths | Select THS4211D when power-down functionality is unnecessary and board layout re-use of THS4215D footprint is acceptable |
| OPA695ID | Higher 1.7 GHz bandwidth but higher 12.5 mA quiescent current; no integrated power-down | Better suited for >500 MHz small-signal gain stages; less optimal for battery-constrained or thermally limited designs | Choose OPA695ID only when bandwidth >1.2 GHz is mandatory and power budget allows +30% IQ |
Compared with THS4211D and OPA695ID, THS4215D uniquely balances ultra-low distortion, 1 GHz bandwidth, and hardware-controllable power-down in an SOIC-8 package - making it optimal for portable instrumentation and multi-channel data acquisition where standby current and thermal management are critical.
Availability
THS4215D is available at Aetrix Electronics and suitable for high-speed data acquisition, video signal routing, and precision test equipment requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.
Supply support for THS4215D includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies with over 90 years of innovation in high-performance signal chain solutions.
The THS4215D belongs to TI's high-speed voltage-feedback op-amp product line, engineered specifically for applications demanding wide bandwidth, low distortion, and flexible power management in compact packages.
FAQ
What is the maximum supply voltage rating for THS4215D?
The absolute maximum supply voltage for THS4215D is ±8.25 V (16.5 V total), but the recommended operating range is ±2.5 V to ±7.5 V for dual supplies or 5 V to 15 V for single supply. Operation beyond ±7.5 V may degrade long-term reliability and is not characterized per datasheet specifications.
How does the power-down function behave on THS4215D?
The THS4215D enters low-power state when the PD pin is driven to ≥REF+1.0 V (with REF = VS– or ground) or ≤REF–1.5 V (with REF = VS+ or floating). In power-down, quiescent current drops to ≤900 µA and output impedance rises to 250 kΩ, isolating the amplifier from downstream circuitry.
Can THS4215D drive a 150 Ω video load at 1 VPP while maintaining NTSC compliance?
Yes. At G = 2, RL = 150 Ω, VO = 1 VPP, and f = 30 MHz, THS4215D achieves –82 dBc 3rd-harmonic distortion and 0.007% differential gain - meeting SMPTE RP 168 and ITU-R BT.601 requirements for broadcast-quality video buffering.
What is the typical settling time of THS4215D for a 2 V step input?
THS4215D settles to 0.1% in 22 ns and to 0.01% in 55 ns under G = –1, VO = 2 V step, and ±5 V supply conditions. This performance enables use in high-throughput sampling systems where aperture uncertainty must remain below 10 ps.
Is THS4215D pin-compatible with THS4211D in SOIC-8 packaging?
Yes - THS4215D and THS4211D share identical SOIC-8 (D) pinouts except that pin 5 is PD on THS4215D and NC on THS4211D. Layouts designed for THS4215D can accommodate THS4211D by leaving pin 5 unconnected, though power-down functionality will be inactive.
THS4215D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 970V/µs
- Gain Bandwidth Product:
- 350 MHz
- -3db Bandwidth:
- 325 MHz
- Current - Input Bias:
- 7 µA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 19mA
- Current - Output / Channel:
- 220 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4215D FAQ
1.How can I place an order for THS4215D through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4215D on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for THS4215D reliable?
The price and inventory of THS4215D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4215D is usually 5 days.
3.What payment methods are accepted for THS4215D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4215D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4215D?
THS4215D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4215D order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for THS4215D?
For technical support, including THS4215D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4215D requirements.
6.How does Aetrix verify that THS4215D is sourced from the original manufacturer or authorized distributors?
All THS4215D products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that THS4215D meets industry standards.
7.What is the process for return or replacement of THS4215D?
All THS4215D units undergo pre-shipment inspection (PSI). If there is an issue with THS4215D, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The THS4215D part is unused and in its original packaging.
Return procedure for THS4215D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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